When I get on it and build 5-6 pounds of boost there is a wierd sound like a high pitched tuning fork. I hear the turbo whistle at about 2-3 then this takes over. The was tuned by Lou not too long ago so I dont figure I should be getting any at this low of boost. Yes I know... get a scantool, but its really not in the budget right now. Any ideas would be great.